44cc75f80e wallet: error if an explicit fee rate was given but the needed fee rate differed (Karl-Johan Alm)
Pull request description:
This ensures that the code doesn't silently ignore too low fee reates. It will now trigger an error in the QT client, if the user provides a fee rate below the minimum, and becomes a necessary check for #11413.
ACKs for top commit:
Sjors:
utACK 44cc75f80e (rebased)
fjahr:
re-ACK 44cc75f80e
Tree-SHA512: cd5a60ee496e64f7ab37aaa53f7748a7393357b1629ccd9660839d366c6191b6413b871ce3aa7293fce1539336222c300ef6f86304f30a1ae8fe361b02310483
23b2a68df5